'''
Author: Liu Zhi Biao
Date: 2023-02-17 15:21:37
LastEditors: Liu Zhi Biao
LastEditTime: 2023-02-17 15:23:07
FilePath: \Runoob_basic\fun.py
Description: 

Copyright (c) 2023 by ${git_name_email}, All Rights Reserved. 
'''
def sum(a, b):
    return a + b

if __name__ == '__main__':
    print("这是本模块")
else:
    print("这是其余模块")